Grab your bike, a light and hit the trails at night! Join St. Louis Area Mountain Bikers and Gateway Off-Road Cyclist for bike rides through a different County park each month! Scheduled by the light of the full moon, these challenging rides are open to experienced cyclists. Riders must wear a helmet and have a light to participate and experience park trails after hours. This month the ride will be held at Matson Hill Park beginning at 7:30 p.m. This is a free event.